MELSRV CURRENT CONTENTS DATABASES Z39.50 SERVER STATISTICS
Time period: 11/01/99 through 11/30/99
1.0 SUMMARY STATISTICS
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Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 2,632 39,689
2-4 a.m. 1,194 22,547
4-6 a.m. 251 6,988
6-8 a.m. 793 23,172
8-10 a.m. 4,062 92,720
10-12 a.m. 9,292 211,464
12-2 p.m. 10,143 219,306
2-4 p.m. 11,392 259,704
4-6 p.m. 8,602 209,446
6-8 p.m. 4,602 114,513
8-10 p.m. 3,168 84,344
10-12 p.m. 1,878 56,045
__________ _____________ _________________
Total: 58,009 1,339,938
1.1 SEARCH commands
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Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 1,216
Davis 930
Irvine 373
Los Angeles 750
Riverside 198
San Diego 2,448
San Francisco 351
Santa Barbara 381
Santa Cruz 646
Lawrence Berkeley 285
Lawrence Livermore 98
Los Alamos 0
MELWEB 48,628
Other - UC 1,079
Other-Network UC 626
_____
58,009
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 13,539
Davis 16,432
Irvine 4,364
Los Angeles 10,845
Riverside 5,470
San Diego 12,343
San Francisco 3,811
Santa Barbara 8,378
Santa Cruz 3,086
Lawrence Berkeley 4,145
Lawrence Livermore 1,492
Los Alamos 0
MELWEB 1,224,153
Other - UC 24,079
Other-Network UC 7,801
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1,339,938
1.3 Response time
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Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.1
Standard deviation in seconds 5.3
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.4
Standard deviation in seconds 0.8
2.0 CURRENT CONTENTS Database Detailed Statistics
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Median session length (minutes:seconds) 21:42
Average session length (minutes:seconds) 19:46
Longest session recorded (minutes:seconds) 195:20
Average number of searches completed per session 0.0
Retrievals per search - median 7.0
Retrievals per search - average 613.0
Retrievals per search - standard deviation 6338.5
Percent of searches completed with 0 results 24.7%
Percent of searches entered that are long 0.0%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 58,009 14.8%
PRESENT 314,886 80.1%
INIT or CLOSE 19,810 5.0%
OTHER 372 0.1%
SEARCHes completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. SEARCHes No. Index Median Avg. Dev.
______ _________ ______ _______ ______ __________ _______
By index:
PERSONAL AUTHOR 23,477 29.0% 4,888 20.8% 17 184.4 1316.5
TITLE WORD 31,922 39.4% 8,253 25.9% 13 648.6 4469.9
EXACT TITLE 845 1.0% 526 62.2% 2 111.1 997.4
JOURNAL 6,058 7.5% 2,626 43.3% 18 3405.8 22111.8
EXACT JOURNAL 2,529 3.1% 746 29.5% 512 3070.8 7832.4
DATE 3,025 3.7% 618 20.4% 7 140.4 1186.4
ADDED SINCE 2,557 3.2% 1,827 71.4% 3 10.5 19.8
SUBFILE 436 0.5% 186 42.7% 16 213.6 883.5
LANGUAGE 1,718 2.1% 463 26.9% 28 436.5 2466.3
SUBJECT CATEGORY 1,041 1.3% 395 37.9% 13 207.2 873.3
PUB TYPE 795 1.0% 171 21.5% 21 368.1 1798.8
ISN 3 0.0% 2 66.7% 138 138.0 0.0
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
AT 6,460 8.0% 1,700 26.3% 23 783.0 4624.9
Other indexes 67 0.1% 39 58.2% 8 120.5 353.2
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. SEARCHes No. Index Median Avg. Dev.
______ _________ ______ _______ ______ __________ _______
By number of indexes:
Multiple 17,682 30.5% 6,078 34.4% 8 392.7 3123.1
Single 40,327 69.5% 8,227 20.4% 25 965.8 8292.7
PRESENT commands, by type:
MARC 54.4%
OPAC 31.2%